Installation of pneumatic butterfly-shutoff valve, P/N 397794-1-1.
Installation of pneumatic butterfly-shutoff valve, P/N 397794-1-1.
Please contact modification supplier for further details.
STC Status: Issued
STC Date: 07/12/70
Responsible Office: Los Angeles Aircraft Certification Office (ANM-100L), Tel: (562) 627-5200
Boeing Company, The